5-Nitro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Nitro-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2,6-Dibromo-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine
6-Nitro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
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